These STAFF heat transfers are made of screen printing inks and process. Durable and Machine washable. Ideal for staff shirts / uniforms. Staff decal sizes are about 11" x 4" ( 27.94cm x 10.16cm ) for the Big and about 4 x 1.5 inches size for the small pocket type. Available in White, Black colors. Staff Identification Iron-On Decals comes ready to apply. They print on all fabric colors (black t-shirts for example), Work well on cotton, polyesters and blend fabrics. Quick and easy to apply YOURSELF with a home iron or heat press machine. No sewing required. Next day Ship out.